package cn.fay.chapter03;
public class PassObject {

	static void f(Letter y)
	{
		y.c='z';
	}
	public static void main(String[] args) {
		Letter x=new Letter();
		x.c='a';
		System.out.println("1.x.c=:"+x.c);
		f(x);
		System.out.println("2.x.c=:"+x.c);
	}

}
